Hi sweetie,

I did my best to be "by the book" when introducing them -- kept them apart entirely for about a week, taking items with one another's scent back and forth so they could get accustomed to one another, then allowed them to see one another briefly (a few minutes at a time) for another couple of weeks -- then progressed to letting them have special treats and toys together in the same room for short times, and finally allowing them to just basically interact together. All in all, the process took about 5 weeks -- and at least for the first few months, it seemed to work.

When we agreed to take Meg in, I had NO idea that Zorro could be so aggressive; when we first brought him home with Einstein (who was just a baby), Zorro let Einstein literally jump onto his back and ride him around like a pony without so much as a growl -- and they've never done anything more extreme than a little playful roughhousing in the years we've had them.